The story of the first Trans-Continental Railroad : its projectors, construction and history
Das NASA Archiv : vom Mercury-Programm zu den Marsrovern : 60 Jahre im All
Fifty years of flying fun : from the Hunter tot the Spitfire and back again
Steam navigation, and its relation to the commerce of Canada and the United States
Bendix Field : the history of an airport and legendary pilot Homer Stockert
Fair play : a clean honest statement of the railroad and transportation situation
The space station decision : incremental politics and technological choice